WO2005007038A1 - Endoprothese d'articulation - Google Patents

Endoprothese d'articulation Download PDF

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Publication number
WO2005007038A1
WO2005007038A1 PCT/CH2003/000494 CH0300494W WO2005007038A1 WO 2005007038 A1 WO2005007038 A1 WO 2005007038A1 CH 0300494 W CH0300494 W CH 0300494W WO 2005007038 A1 WO2005007038 A1 WO 2005007038A1
Authority
WO
WIPO (PCT)
Prior art keywords
joint
endoprosthesis according
channels
area
central axis
Prior art date
Application number
PCT/CH2003/000494
Other languages
German (de)
English (en)
Inventor
Beat Lechmann
Roger BÜRKI
Dominique Burkard
Robert Frigg
Daniel Odermatt
Original Assignee
Synthes Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to ES03739936T priority Critical patent/ES2314217T3/es
Priority to AT03739936T priority patent/ATE407644T1/de
Priority to KR1020067001585A priority patent/KR101199713B1/ko
Priority to AU2003304351A priority patent/AU2003304351B2/en
Priority to DE50310487T priority patent/DE50310487D1/de
Priority to CNB038267772A priority patent/CN100566677C/zh
Priority to CA2533472A priority patent/CA2533472C/fr
Priority to JP2005504319A priority patent/JP4343904B2/ja
Application filed by Synthes Gmbh filed Critical Synthes Gmbh
Priority to BRPI0318413-7A priority patent/BR0318413A/pt
Priority to NZ544725A priority patent/NZ544725A/en
Priority to EP03739936A priority patent/EP1646334B1/fr
Priority to PCT/CH2003/000494 priority patent/WO2005007038A1/fr
Priority to TW093118256A priority patent/TWI349540B/zh
Priority to CL200401822A priority patent/CL2004001822A1/es
Priority to ARP040102595A priority patent/AR045927A1/es
Publication of WO2005007038A1 publication Critical patent/WO2005007038A1/fr
Priority to US11/338,466 priority patent/US7637956B2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/10—Accessories; Auxiliary operations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/30364—Rotation about the common longitudinal axis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/30369—Limited lateral translation of the protrusion within a larger recess
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
    • A61F2002/30624—Hinged joint, e.g. with transverse axle restricting the movement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
    • A61F2002/30649—Ball-and-socket joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
    • A61F2002/30673—Lubricating means, e.g. synovial pocket
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30841—Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
    • A61F2002/30843—Pyramidally-shaped
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30891—Plurality of protrusions
    • A61F2002/30892—Plurality of protrusions parallel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
    • A61F2002/443—Intervertebral or spinal discs, e.g. resilient made of articulated components having two transversal endplates and at least one intermediate component
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit

Definitions

  • the invention relates to a joint endoprosthesis, in particular to a Swisswirbelimpiantat according to the preamble of patent claim 1.
  • intervertebral implants or disc prostheses currently in use comprise a joint whose articular surfaces are made of metal, polymers or ceramic materials.
  • the articular surfaces usually remain dry, which can affect the life of the implant.
  • the tribological properties are relevant because of the limited rotational movements of the slidably mounted joint parts.
  • an artificial hip socket which is equipped with a liquid chamber to improve the tribological properties of the articular surfaces.
  • a disadvantage of this implant is the fact that the liquid chamber is closed, so that no body fluid can be sucked from the outside, but only from the chamber itself. Furthermore, body fluid can accumulate in closed fluid chambers, which penetrate through thin scratches from the outside into the fluid chamber can. Because of the lack of circulation, the pH of this accumulated fluid may decrease, which may chemically attack the parts of the implant. In addition, the relative movements of the implant parts with closed fluid chambers, which are connected by such cracks with the outer surfaces of the implant, cause an undesirable pumping effect.
  • the invention aims to remedy this situation.
  • the invention has for its object to provide a joint prosthesis, which comprises one or more opening into the interfaces between implant and bone channels, which for the supply of body fluids containing proteins and other substances with good lubricating properties, on the sliding surfaces mounted on each other are suitable.
  • the invention solves the stated problem with a joint endoprosthesis, which has the features of claim 1.
  • the openings of the channels can be arranged centrally in the Appositions vom, so that the supply of body fluids can be done analogous to the natural disc;
  • the lower and the upper channels are arranged such that at least one upper channel opens into the upper Appositions procedure and at least one lower channel in the lower Appositionsthesis, so that both sides body fluid can be guided to the articular surfaces.
  • At least one lower or at least one upper channel penetrates from the side surfaces of the intervertebral implant into the corresponding joint part, so that body fluid can also be transported to the joint surfaces from the cavity created by the incision.
  • the mouths of the channels in the joint surfaces A, B are provided with curves.
  • the intervertebral implant comprises a plurality of upper channels and preferably also a plurality of lower channels, which are arranged such that their longitudinal axes with the central axis of the intervertebral implant include an angle between 0 ° and 90 °. The angles are chosen so that
  • the channels open at desired positions in the articular surfaces
  • the channel mouths are arranged outside there on the intervertebral implant, where synovial fluid is present, in particular centrally in the Appositions vom and in the cavity created by the incision.
  • each channel has a cross-sectional area which is between 0.01% and 10% of a joint area A; B. Suitable dimensions for this are in the case of a joint endoprosthesis designed as an intervertebral implant:
  • the channels have a diameter between 0.3 mm and 4.0 mm, wherein the minimum diameter is matched to the size of the particles which have a lubricating property, for example proteins.
  • the maximum diameter of the channels is chosen so that no significant weakening of the strength occurs at the intervertebral implant.
  • the channels open symmetrically distributed in the joint surfaces A, B.
  • the upper apposition surface has an area F 0 while the upper channels open into the upper apposition area within a partial area with an area T 0 ⁇ F 0 .
  • the surface area T 0 of the partial area is preferably between 0.006% and 1.0% of the surface area F 0 of the upper apposition area.
  • the lower apposition surface has an area F u while the lower channels within a partial area having an area T u ⁇ F u open into the lower apposition area, the area U u of the partial area preferably being between 0.006% and 1.0% of the area F u of the lower apposition area.
  • these partial surfaces are preferably arranged concentrically to the central axis of the intervertebral implant.
  • the joint may in various embodiments comprise two or three hinge parts.
  • material pairings for the joint parts the following pairings are particularly suitable:
  • alloys of cobalt, chromium and molybdenum are suitable as metals.
  • the alloy can still be enriched with carbon.
  • the surface of a metal-made joint part may be coated by a suitable method with titanium carbide, titanium nitride or amorphous carbon.
  • the polymer is preferably high molecular weight polyethylene (UHMWPE), which surface can be crosslinked by a suitable method to improve wear properties.
  • FIG. 1a shows a medio-lateral section through an embodiment of the joint endoprosthesis according to the invention
  • FIG. 1b shows a section of the lower joint part of the embodiment of the joint endoprosthesis according to the invention shown in FIG. 1a with rounded mouths of the channels into the joint surface
  • FIG. 1a shows a medio-lateral section through an embodiment of the joint endoprosthesis according to the invention
  • FIG. 1b shows a section of the lower joint part of the embodiment of the joint endoprosthesis according to the invention shown in FIG. 1a with rounded mouths of the channels into the joint surface
  • FIG. 1a shows a medio-lateral section through an embodiment of the joint endoprosthesis according to the invention
  • FIG. 1b shows a section of the lower joint part of the embodiment of the joint endoprosthesis according to the invention shown in FIG. 1a with rounded mouths of the channels into the joint surface
  • FIG. 1a shows a medio-lateral section through an embodiment of the joint end
  • FIG. 2 shows a perspective view of a further embodiment of the joint endoprosthesis according to the invention
  • FIG. 3 shows a section parallel to the first axis of rotation through the embodiment shown in FIG. 2;
  • FIGS. 2 and 3 shows a section parallel to the second axis of rotation through the embodiment shown in FIGS. 2 and 3;
  • Fig. 5 is a plan view of the embodiment shown in FIGS. 2 to 4.
  • FIG. 1 shows an embodiment of the joint prosthesis as an intervertebral implant 1 in a medio-lateral section.
  • the intervertebral implant 1 comprises, with respect to its central axis 2, which is essentially parallel to the longitudinal axis of the spinal column, arranged axially one above the other, an upper part 10 and a lower part 20, which enclose a joint 5.
  • the upper part 10 has axially outwardly an upper apposition surface 15 intersecting the central axis 2 for abutment with the base plate of an above adjacent vertebral body and inside a lower surface 16 with the integrated, upper joint part 6.
  • the lower part 20 axially outwardly one the central axis 2 intersecting lower Appositions Design 25 for contact with the cover plate of a below adjacent vertebral body and inside an upper surface 16 with the integrated lower hinge part 8.
  • the lower hinge part 8 is designed here as a ball segment 35, while the upper hinge part 6 as a spherical segment 35 complementary joint shell 36th is formed so that the two parts 10, 20 are pivotable through the hinge 5 relative to each other polyaxially.
  • Each of the two hinge parts 6, 8 is formed as a separate part and connected to the corresponding part 10, 20.
  • upper channels 27 are mounted, which open into the upper Appositions simulation 15 and the upper part 10 and the upper hinge part 6 bis to the joint surface B of the joint shell 36 penetrate. Through these upper channels 27, the lubricating properties having body fluid is transported from above to the articular surfaces A, B of the joint 5.
  • lower channels 28 are arranged, which open into the lower Appositions simulation 25 and penetrate the lower part 20 and the lower hinge part 8 to the articular surface A of the ball segment 35, so that the body fluid from below to the articular surfaces A; B of the Joint 5 can be transported.
  • the channels 27, 28 are arranged in both parts 10, 20 so that their openings 40 are centrally located in the apposition surfaces 15, 25.
  • the upper joint part 6 is formed with three upper channels 27a-c, wherein the longitudinal axis 42b of the central upper channel 27b in the starting position of the intervertebral implant 1 is coaxial with the longitudinal axis 2 and the longitudinal axes 42a, 42c of the two 27c with the central axis 2 enclose an angle, in which case the longitudinal axis 42a of the channel 27a with the central axis 2 forms an angle of -50 ° and the longitudinal axis 42c of the channel 27c with the central axis 2 an angle of + 50 ° includes.
  • the lower hinge part 8 comprises two lower channels 28a, 28b, the longitudinal axes 41a, 42b of which also enclose an angle with the central axis 2, the longitudinal axis 41a of the channel 28a enclosing the central axis 2 at an angle of -15 ° and the longitudinal axis 41b of the channel 28b with the central axis 2 encloses an angle of + 15 °.
  • a section of the lower hinge part 8 is shown with a lower channel 28 a.
  • the lower channel 28a penetrates the ball segment 35 to the joint surface A, wherein the channel wall is provided at the transition with a rounding 51, so that the mouth of the channel 28a in the joint surface A is not sharp-edged special rounded.
  • the mouths of the other lower channel 28b and all upper channels 27a-c are preferably configured analogously.
  • FIGS. 2 to 5 show another embodiment of the joint endoprosthesis designed as an intervertebral implant 1.
  • the intervertebral implant 1 comprises an upper part 10 with an upper, arranged transversely to the central axis 2 Appositions simulation 15 for abutment with the base plate of an adjacent vertebral body, a lower part 20 with a lower, arranged transversely to the central axis 2 Apposition surface 25 for engagement with the cover plate of the adjacent vertebral body and lying between a joint 5.
  • the upper part 10 and the lower part 20 are connected to two mutually perpendicular axes of rotation 3; 4 movable relative to each other.
  • the joint 5 is realized by three joint parts 6, 7, 8, of which the lower joint part 8 and the upper joint part 6 each form a rotary joint 38, 39 which cooperates with the middle joint part 7 and is rotatable about each axis of rotation 3, 4.
  • the lower hinge 39 comprises as joint surfaces arranged on the central joint part 7 to the first axis of rotation 3 coaxial, lower convex articular surface 30 and disposed on the lower joint part 8, the articular surface 30 complementary, lower concave articular surface 31.
  • the upper hinge 38 comprises as articulation surfaces on the upper hinge part 6 coaxial to the second axis of rotation 4, upper convex hinge surface 32 and arranged on the middle hinge part 7, complementary to the articular surface 32, upper concave hinge surface 33.
  • the articular surfaces 30; 31; 32; 33 are part surfaces of circular cylinder jacket surfaces with axially terminal adjacent Configured conical shell faces.
  • coaxial cams 17 are mounted on the upper and on the central joint part 6, 7 axially endwise of the axes of rotation 3, 4, which cams are slidably received in slot guides 18 in the lower joint part 8 and in the middle joint part 7.
  • slot guides 18 cams 18, the rotation angle of the joint parts 6, 7, 8 about the axes of rotation 3, 4 limited.
  • the intervertebral implant 1 is held together by the cams 17 accommodated in the slot guides 18.
  • FIG. 3 As shown in Figs. 3 and 4, four upper channels 27a-d are attached to the upper portion 10, which open into the upper apposition surface 15 and penetrate the upper portion 10 including the upper hinge portion 6 to the articular surface A '. Through these channels 27, the lubricating properties having body fluid is transported from above to the Gelenkfiumbleen A ', B' of the upper pivot 38 (Fig. 2). At the lower part 20, three lower channels 28a-c are arranged, which open into the lower Appositions simulation 25 and the lower part 20 including the lower down to the articular surfaces A ";B" of the lower hinge 39 ( Figure 2). Furthermore, two further lower channels 28d, 28e are attached to the lower joint part 8 (FIG.
  • the longitudinal axes 42b, 42c of the two upper channels 27b, 27c form an angle with the central axis 2, the longitudinal axis 42b of the upper channel 27b enclosing the central axis 2 at an angle of + 25 ° and the longitudinal axis 42c of the channel 27c with the central axis 2 includes an angle of -25 °. Furthermore, it can be seen from the antero-posterior section shown in FIG.
  • both longitudinal axes 41d, 41e lie in the antero-posterior center plane of the intervertebral implant 1.
  • FIG. 5 shows the openings 40 of the upper channels 27a-d opening into the upper apposition surface 15.
  • the openings 40 lie in a partial surface 37 of the Appositions simulation 15, which is orthogonal to the central axis 2 and is concentric with this.
  • the central axis 2 ( Figure 2) intersects the intersection of the first with the second axis of rotation 3, 4 and is displaced against the dorsal side surface 12 of the upper part 10 from the center thereof.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Nanotechnology (AREA)
  • Neurology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Prostheses (AREA)

Abstract

L'invention concerne une endoprothèse d'articulation, notamment un implant intervertébral (1), comportant un axe central (2), une partie supérieure (10), une partie inférieure (20) et une articulation (5) logée entre les deux parties : (A) l'articulation (5) présente au moins deux surfaces d'articulation (A, B) pouvant coulisser l'une sur l'autre ; (B) la partie supérieure (10) présente une surface d'apposition supérieure (15) coupant l'axe central (2), et des surfaces latérales (11, 12, 13, 14) ; et, (C) la partie inférieure (20) présente une surface d'apposition inférieure (25) coupant l'axe central (2), et des surfaces latérales (21, 22, 23, 24). L'endoprothèse d'articulation selon l'invention comporte au moins un canal (27, 28) destiné au transport de liquides corporels, aboutissant dans une des deux surfaces d'articulation (A, B), et reliant celle-ci à l'extérieur de l'endoprothèse d'articulation.
PCT/CH2003/000494 2003-07-22 2003-07-22 Endoprothese d'articulation WO2005007038A1 (fr)

Priority Applications (16)

Application Number Priority Date Filing Date Title
BRPI0318413-7A BR0318413A (pt) 2003-07-22 2003-07-22 endopróstese para uma junta
AT03739936T ATE407644T1 (de) 2003-07-22 2003-07-22 Gelenkendoprothese
NZ544725A NZ544725A (en) 2003-07-22 2003-07-22 Articulated endoprosthesis
DE50310487T DE50310487D1 (de) 2003-07-22 2003-07-22 Gelenkendoprothese
CNB038267772A CN100566677C (zh) 2003-07-22 2003-07-22 关节内假体
CA2533472A CA2533472C (fr) 2003-07-22 2003-07-22 Endoprothese d'articulation
JP2005504319A JP4343904B2 (ja) 2003-07-22 2003-07-22 関節内人工器官
ES03739936T ES2314217T3 (es) 2003-07-22 2003-07-22 Protesis de articulacion.
KR1020067001585A KR101199713B1 (ko) 2003-07-22 2003-07-22 척추용 임플란트
AU2003304351A AU2003304351B2 (en) 2003-07-22 2003-07-22 Articulated endoprosthesis
EP03739936A EP1646334B1 (fr) 2003-07-22 2003-07-22 Endoprothese d'articulation
PCT/CH2003/000494 WO2005007038A1 (fr) 2003-07-22 2003-07-22 Endoprothese d'articulation
TW093118256A TWI349540B (en) 2003-07-22 2004-06-24 Gelenkendoprothese
CL200401822A CL2004001822A1 (es) 2003-07-22 2004-07-21 Implante intervertebral, que comprende; un eje central, una parte superior, una parte inferior; una articulacion con dos areas articulares; por lo menos un canal para el transporte de fluido corporal; donde la articulacion tiene una parte articular s
ARP040102595A AR045927A1 (es) 2003-07-22 2004-07-22 Endoprotesis articular
US11/338,466 US7637956B2 (en) 2003-07-22 2006-01-23 Articulated endoprosthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2003/000494 WO2005007038A1 (fr) 2003-07-22 2003-07-22 Endoprothese d'articulation

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/338,466 Continuation US7637956B2 (en) 2003-07-22 2006-01-23 Articulated endoprosthesis

Publications (1)

Publication Number Publication Date
WO2005007038A1 true WO2005007038A1 (fr) 2005-01-27

Family

ID=34069947

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2003/000494 WO2005007038A1 (fr) 2003-07-22 2003-07-22 Endoprothese d'articulation

Country Status (16)

Country Link
US (1) US7637956B2 (fr)
EP (1) EP1646334B1 (fr)
JP (1) JP4343904B2 (fr)
KR (1) KR101199713B1 (fr)
CN (1) CN100566677C (fr)
AR (1) AR045927A1 (fr)
AT (1) ATE407644T1 (fr)
AU (1) AU2003304351B2 (fr)
BR (1) BR0318413A (fr)
CA (1) CA2533472C (fr)
CL (1) CL2004001822A1 (fr)
DE (1) DE50310487D1 (fr)
ES (1) ES2314217T3 (fr)
NZ (1) NZ544725A (fr)
TW (1) TWI349540B (fr)
WO (1) WO2005007038A1 (fr)

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WO2007089973A2 (fr) * 2006-01-30 2007-08-09 Warsaw Orthopedic, Inc. Articulation prothetique a lubrification passive
JP2008539845A (ja) * 2005-05-03 2008-11-20 スパンアール ソシエテ アノニム 椎間板のプロテーゼ
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US9289310B2 (en) 2007-03-10 2016-03-22 Spinesmith Partners, L.P. Artificial disc with post and modular collar
US10335288B2 (en) 2007-03-10 2019-07-02 Spinesmith Partners, L.P. Surgical implant secured by pegs and associated methods
FR2916956B1 (fr) 2007-06-08 2012-12-14 Ldr Medical Cage intersomatique,prothese intervertebrale,dispositif d'ancrage et instrumentation d'implantation
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US9358122B2 (en) 2011-01-07 2016-06-07 K2M, Inc. Interbody spacer
US9254130B2 (en) 2011-11-01 2016-02-09 Hyun Bae Blade anchor systems for bone fusion
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JP2008539845A (ja) * 2005-05-03 2008-11-20 スパンアール ソシエテ アノニム 椎間板のプロテーゼ
JP4801145B2 (ja) * 2005-05-03 2011-10-26 スパンアール ソシエテ アノニム 椎間板のプロテーゼ
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DE102005025685B4 (de) * 2005-06-03 2015-05-21 Mathys Ag Bettlach Bandscheibenimplantat
EP1919404B1 (fr) * 2005-08-04 2019-07-03 Taurus GmbH & Co. KG Dispositif médical orthopédique
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Also Published As

Publication number Publication date
ES2314217T3 (es) 2009-03-16
CN100566677C (zh) 2009-12-09
TWI349540B (en) 2011-10-01
US7637956B2 (en) 2009-12-29
AU2003304351B2 (en) 2009-05-21
JP2007504846A (ja) 2007-03-08
AR045927A1 (es) 2005-11-16
CA2533472A1 (fr) 2005-01-27
BR0318413A (pt) 2006-08-01
NZ544725A (en) 2010-02-26
CA2533472C (fr) 2011-06-14
CL2004001822A1 (es) 2005-05-06
ATE407644T1 (de) 2008-09-15
TW200509871A (en) 2005-03-16
JP4343904B2 (ja) 2009-10-14
EP1646334A1 (fr) 2006-04-19
US20060212123A1 (en) 2006-09-21
DE50310487D1 (de) 2008-10-23
CN1822801A (zh) 2006-08-23
EP1646334B1 (fr) 2008-09-10
KR20060113641A (ko) 2006-11-02
KR101199713B1 (ko) 2012-11-08
AU2003304351A1 (en) 2005-02-04

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